Home / 451,789.08-623,473.74-247,840.40

Finding the Fourth Proportional to 451,789.08, 623,473.74 and 247,840.40

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Solution

The fourth proportional to 451,789.08, 623,473.74 and 247,840.40 is: 342,022.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,789.08 : 623,473.74 = 247,840.40 : x
  2. Step 2: Convert to fraction form
    451,789.08/623,473.74 = 247,840.40/x
  3. Step 3: Cross multiply
    451,789.08x = 623,473.74 × 247,840.40
  4. Step 4: Simplify right side
    451,789.08x = 154,521,981,111.10
  5. Step 5: Solve for x
    x = 154,521,981,111.10/451,789.08
  6. Step 6: Final answer
    x = 342,022.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.